/*@param
num: text的行数,默认两行
*/
.text-fold(@num: 2){
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: @num;
}

.border-1px(@color){
  position: relative;
  &:after{
    display: block;
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    border-top: 1px solid @color;
    content: ' ';
  }
}

.group-title(){
  font-size: 17px;
  font-weight: 400;
}
